Re: sched: Avoid SMT siblings in select_idle_sibling() if possible

[Srivatsa Vaddagiri]

* Mike Galbraith <efault@xxxxxx> [2012-02-21 06:43:18]:

> On Mon, 2012-02-20 at 20:07 +0100, Peter Zijlstra wrote: 
> > On Mon, 2012-02-20 at 19:14 +0100, Mike Galbraith wrote:
> > > Enabling SD_BALANCE_WAKE used to be decidedly too expensive to consider.
> > > Maybe that has changed, but I doubt it.
> > 
> > Right, I through I remembered some such, you could see it on wakeup
> > heavy things like pipe-bench and that java msg passing thing, right?
> 
> Yeah, it beat up switch heavy buddies pretty bad.

Do you have pointer to the java benchmark? Also is pipe-bench the same
as the one described below?

http://freecode.com/projects/pipebench

- vatsa

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/